# Paper: MemGym: a Long-Horizon Memory Environment for LLM Agents

---
type: paper
title: "MemGym: a Long-Horizon Memory Environment for LLM Agents"
authors: Wujiang Xu, Yu Wang, Kai Mei, Kaiqu Liang, Zhenting Wang, Mingyu Jin, Han Zhang, Shi-Xiong Zhang, et al.
year: 2026
venue: arXiv
url: https://arxiv.org/abs/2605.20833
code_url:
source: arxiv
collected_at: 2026-07-08
published_at: 2026-05-20
updated_at: 2026-05-20
status: queued
relevance: high
topics:
  - agent-evaluation
  - coding-agent
  - computer-use
  - embodied-agent
  - memory
  - planning
  - rag
  - reasoning
  - tool-use
methods:
  -
benchmarks:
  -
models:
  -
datasets:
  - cs.CL
related_concepts:
  -
related_jobs:
  -
related_experiments:
  -
related_projects:
  -
collection_score: 26
collection_queries: agent-memory
---

## One-line Takeaway

Auto-collected from arXiv because it matched the Agent collection queries. Needs human skim.

## Why Collected

- matched queries: agent-memory
- inferred topics: agent-evaluation, coding-agent, computer-use, embodied-agent, memory, planning, rag, reasoning, tool-use
- arXiv categories: cs.CL
- collection score: 26

## Review Checklist

- Does this paper directly inform Agent architecture, evaluation, memory, tools, safety, coding agents, GUI/browser agents, or multi-agent workflows?
- Does it include a benchmark, dataset, code, or reproducible experimental setup?
- Should it be promoted from `queued` to `skimmed` or `summarized`?

## Links

- arXiv: https://arxiv.org/abs/2605.20833